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mondofacto - Online Medical Dictionary Category: Health and Medicine > Medical Dictionary Date & country: 26/01/2008, UK Words: 116197

intrinsic fibres
Synonym for association fibres ... Nerve fibre's interconnecting subdivisions of the cerebral cortex of the same hemisphere or different segments of the spinal cord on the same side. ... Synonym: endogenous fibres, intrinsic fibres. ... (05 Mar 2000) ...

intrinsic motivation
Derivation of personal satisfaction through self-initiated achievement and behaviour. ... (05 Mar 2000) ...

intrinsic muscles
Muscles fully contained (origin, belly, and insertion) within the structure under consideration. For example, the interossei and lumbrical muscles are intrinsic muscles of the hand. ... (05 Mar 2000) ...

intrinsic muscles of foot
Muscles fully contained (origin, belly, insertion) in the foot and toes. These muscles are arranged in four layers and all are innervated by the plantar branches of the tibial nerve. Although they may be capable of producing the actions described under their individual entries, as a group the primary function of the intrinsic muscles of the foot is …

intrinsic pathway
Synonym for extrinsic pathway ... <haematology> Initiation of blood clotting as a result of factors released from damaged tissue, as opposed to contact with a foreign surface (the intrinsic pathway). ... Tissue thromboplastin (Factor III) in conjunction with Factor VII proconvertin) will activate Factor X that, once activated, converts prothrom …

intrinsic proteins
Synonym for integral proteins ... Proteins that cannot be easily separated from a biomembrane. ... Synonym: intrinsic proteins. ... (05 Mar 2000) ...

intrinsic reflex
A reflex muscular contraction elicited by the application of a stimulus, usually stretching, to the muscle itself as opposed to a muscular contraction caused by an extrinsic stimulus, e.g., skin, as in the abdominal skin reflex's. ... (05 Mar 2000) ...

intrinsic sphincter
A thickening of the circular fibres of the muscular coat of an organ. ... (05 Mar 2000) ...

intrinsic sympathomimetic activity
The property of a drug that causes activation of adrenergic receptors so as to produce effects similar to stimulation of the sympathetic nervous system. ... (05 Mar 2000) ...

intrinsicoid deflection
The abrupt downstroke from maximum positivity when the electrode is placed not directly on the muscle but at a distance, as in the unipolar chest leads in clinical electrocardiography. ... (05 Mar 2000) ...

intro-
Inwardly, into; opposite of extra-. ... Compare: intra-. ... Origin: L. Intro, into ... (05 Mar 2000) ...

introduce
1. To lead or bring in; to conduct or usher in; as, to introduce a person into a drawing-room. ... 2. To put (something into a place); to insert; as, to introduce the finger, or a probe. ... 3. To lead to and make known by formal announcement or recommendation; hence, to cause to be acquainted; as, to introduce strangers; to introduce one person to a …

introduced
Not indigenous, not native to the area in which it now occurs. ... Compare: adventive. ... (09 Oct 1997) ...

introducer
An instrument, such as a catheter, needle, or endotracheal tube, for introduction of a flexible device. ... Synonym: intubator. ... Origin: L. Intro-duco, to lead into, introduce ... (05 Mar 2000) ...

introflection
Introflexion ... A bending inward. ... Origin: intro-+ L. Flecto, pp. Flectus, to bend ... (05 Mar 2000) ...

introgastric
Leading or passed into the stomach. ... Origin: intro-+ G. Gaster, belly, stomach ... (05 Mar 2000) ...

introgression
Backcrossing of hybrids of twoplant populations to introduce new genesinto a wild population. ... (09 Oct 1997) ...

introit
1. A going in. ... 2. A psalm sung or chanted immediately before the collect, epistle, and gospel, and while the priest is entering within the rails of the altar. A part of a psalm or other portion of Scripture read by the priest at Mass immediately after ascending to the altar. ... 3. An anthem or psalm sung before the Communion service. ... 4. Any c …

introitus
The vaginal opening. ... (27 Sep 1997) ...

introitus canalis
Synonym for introitus of facial canal ... Entrance to facial canal, through which the facial nerve passes, at end of internal acoustic meatus. ... Synonym: introitus canalis. ... (05 Mar 2000) ...

introitus of facial canal
Entrance to facial canal, through which the facial nerve passes, at end of internal acoustic meatus. ... Synonym: introitus canalis. ... (05 Mar 2000) ...

introjection
A psychological defense mechanism involving appropriation of an external happening and its assimilation by the personality, making it a part of the self. ... Origin: intro-+ L. Jacto, to throw ... (05 Mar 2000) ...

intromission
The insertion or introduction of one part into another. ... Origin: intro-+ L. Mitto, to send ... (05 Mar 2000) ...

intromittent organ
Synonym for penis ... <anatomy> The male organ of copulation and of urinary excretion, comprising a root, body and extremity or glans penis. The root is attached to the descending portions of the pubic bone by the crura, the latter being the extremities of the corpora cavernosa and beneath them the corpus spongiosum, through which the urethra …

intron
<molecular biology> A noncoding sequence of DNA within a gene, that is transcribed into hnRNA but is then cut out of the message by RNA splicing in the nucleus, leaving a mature mRNA that is then translated in the cytoplasm. ... Introns are poorly conserved and of variable length, but the regions at the ends are self complementary, allowing a …

intron splicing
The excision of mRNA fragments, which correspond to non-coding DNA introns, and the ligation of the remaining mRNA fragments to form a single molecule. ... (14 Nov 1997) ...

introns
Non-coding, intervening sequences of DNA that are transcribed, but are removed from within the primary gene transcript and rapidly degraded during maturation of messenger RNA. most genes in the nuclei of eukaryotes contain introns, as do mitochondrial and chloroplast genes. ... (12 Dec 1998) ...

introrse
Of anthers, dehiscing towards the centre of the flower. ... Compare: extrorse. ... (09 Oct 1997) ...

introspection
Looking inward; self-scrutinizing; contemplating one's own mental processes. ... Origin: intro-+ L. Specto, to look at, inspect ... (05 Mar 2000) ...

introspective method
In functionalism, the systematic study of mental phenomena by contemplating the processes in one's own conscious experiences. ... (05 Mar 2000) ...

introversion
<psychology> A state in which attention is largely directed inward upon one's self. ... (12 Dec 1998) ...

introvert
1. One who tends to be unusually shy, introspective, self-centreed, and avoids becoming concerned with or involved in the affairs of others. ... Compare: extrovert. ... 2. To turn a structure into itself. ... (05 Mar 2000) ...

intrude
1. To thrust or force (something) in or upon; especially, to force (one's self) in without leave or welcome; as, to intrude one's presence into a conference; to intrude one's opinions upon another. ... 2. To enter by force; to invade. 'Why should the worm intrude the maiden bud?' (Shak) ... 3. <geology> The cause to enter or force a way, as int …

intrusion
<dentistry> Movement of a tooth back into the bone. ... (08 Jan 1998) ...

intrusive
Apt to intrude; characterised by intrusion; entering without right or welcome. ... <geology> Intrusive rocks, rocks which have been forced, while in a plastic or melted state, into the cavities or between the cracks or layers of other rocks. The term is sometimes used as equivalent to plutonic rocks. It is then contrasted with effusive or volc …

intubate
To put a tube in. ... (12 Dec 1998) ...

intubation
<procedure> The insertion of a tube into a body canal or hollow organ, as into the trachea or stomach. ... Origin: L. In = into, tuba = tube ... (18 Nov 1997) ...

intubation, gastrointestinal
The insertion of a tube into the stomach, intestines, or other portion of the gastrointestinal tract to allow for the passage of food products, etc. ... (12 Dec 1998) ...

intubator
Synonym for introducer ... An instrument, such as a catheter, needle, or endotracheal tube, for introduction of a flexible device. ... Synonym: intubator. ... Origin: L. Intro-duco, to lead into, introduce ... (05 Mar 2000) ...

intuition
Knowing or understanding without conscious use of reasoning. ... (12 Dec 1998) ...

intuitive
1. Seeing clearly; as, an intuitive view; intuitive vision. ... 2. Knowing, or perceiving, by intuition; capable of knowing without deduction or reasoning. 'Whence the soul Reason receives, and reason is her being, Discursive, or intuitive.' (Milton) ... 3. Received. Reached, obtained, or perceived, by intuition; as, intuitive judgment or knowledge; …

intuitive stage
In psychology, a stage of development, usually occurring between 4 and 7 years of age, in which a child's thought processes are determined by the most prominent aspects of the stimuli to which he or she is exposed, rather than by some form of logical thought. ... (05 Mar 2000) ...

intumesce
To swell up; to enlarge. ... Origin: L. In-tumesco, to swell up, fr. Tumeo, to swell ... (05 Mar 2000) ...

intumescence
Synonym: enlargement. ... 2. The process of enlarging or swelling; used to describe the spinal enlargements. ... (05 Mar 2000) ...

intumescent
Enlarging; becoming enlarged or swollen. ... (05 Mar 2000) ...

intumescent cataract
A cataract swollen because of fluid absorption. ... (05 Mar 2000) ...

intumescentia
Synonym: enlargement. ... Origin: Mod. L. ... (05 Mar 2000) ...

intumescentia cervicalis
Synonym for cervical enlargement ... A spindle-shaped swelling of the spinal cord extending from the third cervical to the second thoracic vertebra, with maximum thickness opposite the fifth or sixth cervical vertebra, consequential to the innervation of the upper limb. ... Synonym: intumescentia cervicalis, cervical enlargement of spinal cord. ... (0 …

intumescentia ganglioformis
Synonym for geniculate ganglion ... The sensory ganglion of the facial (7th cranial) nerve. The geniculate ganglion cells send central processes to the brainstem and peripheral processes to the taste buds in the anterior tongue, the soft palate, and the skin of the external auditory meatus and the mastoid process. ... (12 Dec 1998) ...

intumescentia lumbalis
Synonym for lumbar enlargement ... A spindle-shaped swelling of the spinal cord beginning at the level of the tenth thoracic vertebra and tapering into the medullary cone, with maximum thickness opposite the last thoracic vertebra, consequential to the innervation of the lower limb. ... Synonym: intumescentia lumbalis, lumbar enlargement of spinal co …

intumescentia tympanica
Synonym for tympanic enlargement ... A swelling, not ganglionic, on the tympanic branch of the glossopharyngeus nerve; it is regarded as possibly similar to the carotid glomus. ... Synonym: intumescentia tympanica, tympanic intumescence. ... (05 Mar 2000) ...

intussusception
Intussusception refers to a telescoping of one portion of the intestine into another. This results in reduced blood supply to the affected portion of the intestine. Intussusception is seen almost exclusively in children between the ages of 5 months and 1 year. It is three times more common in boys and the exact cause is unknown. In older children, …

intussusceptive
Relating to or characterised by intussusception. ... (05 Mar 2000) ...

intussusceptive growth
Synonym for auxetic growth ... Growth by increase in the size of component cells. ... Synonym: intussusceptive growth. ... (05 Mar 2000) ...

intussusceptum
The inner segment in an intussusception; that part of the bowel which is received within the other part. ... (05 Mar 2000) ...

intussuscipiens
The portion of the bowel, in intussusception, which receives the other portion. ... Origin: L. Intus, within, + suscipiens, pr. P. Of suscipio, to take up ... (05 Mar 2000) ...

inulase
<enzyme> An enzyme produced by higherplants and some fungi which catalyses the conversion of inulin into fructose. ... (09 Oct 1997) ...

inulin
<protein> A polysaccharide of variable molecular weight (around 5 kD), that is a polymer of fructofuranose. Widely used as a marker of extracellular space, an indicator of blood volume in insects (by measuring the dilution of the radio label) and in food for diabetics. ... (18 Nov 1997) ...

inulin clearance
An accurate measure of the rate of filtration through the renal glomeruli, because inulin filters freely with water and is neither excreted nor reabsorbed through tubule walls. Inulin is not a normal constituent of plasma and must be infused continously to maintain a steady plasma concentration and a steady rate of urinary excretion during the meas …

inulinase
<enzyme> An enzyme acting upon 2,1-beta-d-fructoside links in inulin, releasing d-fructose. ... Synonym: inulase. ... (05 Mar 2000) ...

inulol
Synonym for alantol ... A yellowish liquid obtained by distillation from the root of Inula helenium or elecampane; used internally as an irritating tonic and externally as a mild rubefacient. ... Synonym: inulol. ... (05 Mar 2000) ...

inunction
<medicine> The act of anointing, or the state of being anointed; unction; specifically, the rubbing of ointments into the pores of the skin, by which medicinal agents contained in them, such as mercury, iodide of potash, etc, are absorbed. ... Origin: L. Inunctio, fr. Inungere, inunctum, to anoint. See 1st In-, and Unction. ... Source: Websters …

inundation
A condition in which water temporarily or permanently covers a land surface. ... (09 Oct 1997) ...

inundation fever
Synonym for tsutsugamushi disease ... See Typhus, scrub. ... (12 Dec 1998) ...

InV group antigen
Synonym for Km antigen ... Allotypic antigens that are present on human kappa immunoglobulin light chains. ... Synonym: InV group antigen. ... (05 Mar 2000) ...

invA protein
<chemical> Amino acid sequence given in first source; required for salmonella to invade epithelial cells ... Synonym: inva gene product ... (05 Dec 1998) ...

invaccination
Accidental inoculation of some disease, e.g., syphilis, during vaccination. ... (05 Mar 2000) ...

invade
1. To go into or upon; to pass within the confines of; to enter; used of forcible or rude ingress. 'Which becomes a body, and doth then invade The state of life, out of the grisly shade.' (Spenser) ... 2. To enter with hostile intentions; to enter with a view to conquest or plunder; to make an irruption into; to attack; as, the Romans invaded Great …

invaginate
To ensheathe, infold, or insert a structure within itself or another. ... Origin: L. In, in, + vagina, a sheath ... (05 Mar 2000) ...

invaginate planula
Synonym for gastrula ... Embryonic stage of an animal when gastrulation occurs, follows blastula stage. ... (18 Nov 1997) ...

invagination
1. <biology> The condition of an invaginated organ or part. ... 2. <biology> One of the methods by which the various germinal layers of the ovum are differentiated. ... In embolic invagination, one half of the blastosphere is pushed in towards the other half, producing an embryonic form known as a gastrula. In epibolic invagination, a phe …

invaginator
An instrument for pushing inward any tissue. ... (05 Mar 2000) ...

invalid
1. Weak; sick. ... 2. A person partially or completely disabled. ... Origin: L. In-neg. + validus, strong ... (05 Mar 2000) ...

invalidate
To weaken or make valueless: to discredit. ... (18 Nov 1997) ...

invalidism
The condition of being an invalid. ... (05 Mar 2000) ...

invariant chain
<chemical> Noncovalently associated with class II antigens, alpha and beta chain complex; involved in the regulation of malignant cell ia function; iip31 and iip33 were synthesized by using alternative initiator methionines ... Synonym: II igc, ia-associated invariant chain, II invariant glycoprotein complex, class II-associated invariant chai …

invariant surface glycoprotein 100
<chemical> A stage-specific invariant surface protein in trypanosoma brucei containing an internal, serine-rich, repetitive motif; amino acid sequence given in first source; genbank y14833 ... Synonym: isg-100 ... (05 Dec 1998) ...

invasin
Synonym for hyaluronidase ... <enzyme> Enzyme that degrades hyaluronic acid, found in lysosomes. ... (18 Nov 1997) ...

invasins
Proteins produced by bacterial cells that promote bacterial penetration into mammalian cells. The invasin produced by Yersinia pseudotuberculosis seems to bind to the fibronectin receptor (_5 _1 integrin) at a site close to the fibronectin binding site, though the invasin does not have an RGD sequence. ... (18 Nov 1997) ...

invasion
A term that should be used with caution, although most cell biologists would follow Abercrombie in meaning the movement of one cell type into a territory normally occupied by a different cell type, some pathologists might not agree. ... (18 Nov 1997) ...

invasion index
An index devised by Abercrombie & Heaysman as a means to estimate the invasiveness of cells in vitro. The index is derived from measurements on confronted explants of the cells and embryonic chick heart fibroblasts growing in tissue culture: it is the ratio of the estimated movement, had the cells not been hindered and the actual movement in th …

invasive
1. Having the quality of invasiveness. ... 2. Involving puncture or incision of the skin or insertion of an instrument or foreign material into the body, said of diagnostic techniques. ... (18 Nov 1997) ...

invasive cancer
Cancer that has spread to surrounding tissue. ... (16 Dec 1997) ...

invasive carcinoma
<tumour> A neoplasm in which collections of epithelial cells infiltrate or destroy the surrounding tissue. ... (05 Mar 2000) ...

invasive cervical cancer
Cancer that has spread from the surface of the cervix to tissue deeper in the cervix or to other parts of the body. ... (12 Dec 1998) ...

invasive mole
chorioadenoma destruens ...

invasive species
Non-native species disrupting and replacing native species. ... (09 Oct 1997) ...

invasiveness
Degree to which an organism is able to spread through the body from a focus of infection. ... (09 Oct 1997) ...

invent
1. To come or light upon; to meet; to find. 'And vowed never to return again, Till him alive or dead she did invent.' (Spenser) ... 2. To discover, as by study or inquiry; to find out; to devise; to contrive or produce for the first time; applied commonly to the discovery of some serviceable mode, instrument, or machine. 'Thus first Necessity invent …

invention
1. The act of finding out or inventing; contrivance or construction of that which has not before existed; as, the invention of logarithms; the invention of the art of printing. 'As the search of it [truth] is the duty, so the invention will be the happiness of man.' (Tatham) ... 2. That which is invented; an original contrivance or construction; a d …

inventories, hospital
Materials and equipment in stock; includes drugs in pharmacies, blood in blood banks, etc. ... (12 Dec 1998) ...

inventory
A detailed, often descriptive, list of items. ... (05 Mar 2000) ...

invermination
Synonym: helminthiasis. ... Origin: L. In, in, + vermis (vermin-), worm ... (05 Mar 2000) ...

inverse
1. Opposite in order, relation, or effect; reversed; inverted; reciprocal; opposed to direct. ... 2. <botany> Inverted; having a position or mode of attachment the reverse of that which is usual. ... 3. <mathematics> Opposite in nature and effect; said with reference to any two operations, which, when both are performed in succession upon …

inverse anaphylaxis
Anaphylactic shock in an animal (e.g., guinea pig) whose tissues contain Forssman antigen, resulting from an intravenous injection of serum that contains Forssman's antibody. ... (05 Mar 2000) ...

inverse density dependence
<epidemiology> See density dependence. ... (05 Dec 1998) ...

inverse ocular bobbing
Slow downward eye movement followed by delayed quick upward return. ... (05 Mar 2000) ...

inverse square law
As applied to point sources, the intensity of radiation diminishes in proportion to the square of the distance from the source. ... (05 Mar 2000) ...

inverse symmetry
Correspondence of the right or left side of an asymmetrical individual to the left or right side of another. ... (05 Mar 2000) ...

inverse syntropy
A situation in which the presence of one disease tends to decrease the possibility of another. ... (05 Mar 2000) ...